Wire-heating oven



Dez. 26, 1922. 1,440,153

a. JACKSON, WIRE HEATING OVEN FILED MAR- H. 192i.

INVENTOR. [M42155 5. fem Jam BY V Patented cc. 26, 1922.

CHARLES E. JACKSON, GFEUETBOIT, MICHIGAN.

WIRE-HEATING oven.

Application filed March 11, 1921. Serial No. $51,533.

To all whom it may concern:

Be it known that I, CHARLES EJAcitson, a citizen of the United States, residing at Detroit, in the county of lVayne and State of Michigan, have invented certain new and useful Improvements in Wire dieating Ovens, of which the following is a specifi cation.

This invention relates to wire heating ovens and has for its object an oven specially designed for reheating a coil of wire stock that has been rolled down from a billet. One of the methods of making wire is to heat the billet in a furnace and then roll it down to a rod about 19,- square. This rod is then re-heated and rolled down into a rod about 11- round or square. At this point ordinarily the drawing operations upon the wire begin. Before the wire can be drawn-it has to be annealed, then cleaned with acid, or pickled, to remove the scale. The wire is thendipped in a bath of flour and water and put in a bake oven to dry.

The wire may then be drawndown to a.

smaller gauge. Before each drawing operation this same process of annealing, )ickling and baking hasto be gone through be fore the wire can be drawn down to a smaller gauge.

It is the object of the present invention to provide an oven which permits the taking of the rod stock at thei size. re-heating this so as to permit the wire to be drawn off. while at substantially the maximum temperature, and rolled down to as far as a #8 gauge. This entirely eliminates what ordinarily requires three separate drawing operations and three separate treatments of annealing, pickling, dipping and baking. Obviously this oven aids in the practice of a very much more expeditious process which efiects' a material saving in manufacture.

The oven is provided with a special dc sign of spindle which permits easy loading and is easily kept eool. notwithstanding the intense heat.

- In the drawings,- a

Fig. l is'a front elevation of my oven.

Fig. 2 is a rear elevation of the same,

partly broken away and showing the reel in raised or spinning position.

Fig. 3 is a vertical cross section of the same on the line 33 of Fig. 2, but with the spindle in lowered position.

Fig. 4 is a horizontal section of the same. After the rod stock has been rolled down to a 2; diameter the same is rolled ona reel a. The reel a may be placed into the oven 6 and located in thespace outlined by the guide lugs (Z; l Vhen the reel with the coiled wire thereon hasbeen shoved tightly up against these lugs the opening 0 through the center of the reel will register with the opening in the flanged sleeve 7t secured to the bottom of the oven. This flanged sleeve ]L is a spindle guide. The shouldered spindle i can he slid up and down in this spindle sleeve by manipulating the handle j that is attached to the shouldered spindle and which protrudes through the bayonet slot is in the side of the spindle sleeve. The reduced portion at of the spindle is adapted to fit nicely inthe center opening 6 of the reel to form a journal therefor. i

The idea of having the spindle slidable in the spindle sleeve is to provide a disappearingspindle or bearing for the reel so that the spindle will not be subjected to the intense heatof the furnace while the wire is being heated. Furthermore, it permits the coil to he slid into place easily and the hearing or spindle raised into the coil to lift the coil oi the floor of the oven. This is shown nicely in Fig. 2. All that has to be done is to raise the handle in the bayonet slot 76 and push it into the offset of the slot. This holds the reel off the floor. VVithout this movable spindle the oven would have to be built unnecessarily high to mount the reel upon the spindle and difficulty would also be found in lifting and placing; a heavy reel upon the spindle. y FVhen the spindle has been locked in its uppermostposition the wire may be (.lrawn' out through the orifice 11- in the front of the oven and rolled when in this hot condition down to a #8 gauge, the wire running freely off the spindle which is comparatively cool as the same has occupied its concealed position in the oven up until the time the wire rolling is actually begun.

lWhat I claim is:

1. An oven for the purpose specified, having in combination, an enclosure, a reel therein, and a disappearing spindle or hearing for occupying a lower concealed position out of engagement with the reel and which can be moved into an upper position to support said reel when the wire is to be drai'vn off from the same.

2. In an oven for the purpose specified. the combination of an enclosure, a reel therein, means for locating said reel within the oven, and a disappearing spindle or bearing adapted to occupy a concealed position below the oven floorand capable of being moved to engage in the opening in the reel for the purpose of forming a bearing for said reel where wound with wire to enable the wire. to be drawnjout of the oven.

3. In an oven for .the purposespeciiied, the combination of an enclosure provided with an opening in the bottom, and a shouldered spindle adapted to he slid through the opening from a concealed positionto a projected position, the reduced portion of the spindle serving as a bearingv for an apertured reel when the shouldered spindle is projected upwardly through the opening.

4L'In an oven for the purposespecified, the combination of an enclosure provided with an o ening inthe floor, a reel in said enclosure, a spindlesleeve secured to the bot tom of the Overland registering with the opening through the'floor of the oven, and a slidable spindle or hearing slidable in said spindle sleeve to a concealed position with drawn from said reel or to a projected position for rota-tably supporting said apertured reel.

5. In an oven for the purpose specified, the combination of an enclosure provided with an opening through the floor thereof, a spindle sleeve secured to the floor of the Oven in registry with the opening through the floor and provided in its. side with a bayonet slot, and a spindle having a handle extending'through the bayonet slot whereby the spindle may occupy a lower concealed position below the oven or be raised in the spindle sleeve to provide a bearingsfor an apertured reel of wire when the handle is secured in the offset of the bayonet slot.

6. In an oven for the purpose specified. the combination of an enclosure provided with an opening through the floor, a reel contained in said enclosure, means surrounding said opening for locatingrsaid reel having an aperture so that the aperture is in registry with the opening in the floor, a spindle guide under the oven having an opening therethrough in registry with the opening in the floor, and a spindle or journal slidable in said spindle guide from a lower concealed position withdrawn from said reel to an upper projected position, said spindle when secured in the upper position adapted to project through'the opening in the reel to form a bearing for the same.

7. In an oven for the purpose. specified, the combination of an enclosure provided with an opening in the floor, a reel located therein, a plurality of guide lugs surrounding the opening for locating said. reel having a central aperture so that the-aperture is in registry with the opening in the floor, a spindle guide located under the'oven and having an opening in registry with the opening-through the floor of the oven, and a disappearing spindle slidable in said spindle guide from a concealed position under the oven and withdrawn from said reel to a projected position above the oven in which'latter position the same forms a bearing for the said reel to enable wire to be drawn off the same from the oven.

8. In an oven for the purpose specified the combination of an enclosure provided with an opening through the bottom thereof, a plurality of guide lugs secured to the floor about the opening in the bottom for locating arecl provided with an aperture so that the aperture is in registry with the opening through the floor ofthe enclosure, a guide sleeve secured under the oven and having a central aperture registering with the aperture through the bottom of the oven, said guide sleeve provided'with a bayonet slot, a shouldered spindle having its portion of large diameter guided in the sleeve and having its portion of smaller diameter adapted to form a bearing for the reel, and a handle secured to the spindle and protruding through the bayonet slot whereby the spindle may occupy a concealed position below the oven and whereby the handle may be raised and secured in the oiiset of the bayonetslot to raise the reel off thefloorof the oven and rotatably support the-same when the wire is drawn oil the. reel.

9. In an oven for the purpose specified, the combination of an enclosure, a reel for containing. wire located therein, means for heating the enclosure, and a spindle for journaling said wire reel provided with means by which the spindle may be withdrawn both from the reel and the enclosure to lreep the same cool.

10. In an oven for the purpose specified, the combination of an enclosure, provided with a floor, means for heating the enclosure, :1 reel which may be withdrawn from the enclosure and a spindle for supportingwthe reel which may be dropped to permit the withdrawal of the reel.

11. In an oven, for the purpose specified, the combination of an enclosure provided with a floor, a reel for containing wire which may be slid along the floor into the enclosure and avertically movable spindle which may be dropped below the reel to permit the removal of the same and which may be raised into its uppermost position to lift the reel off from the floor.

In testimony whereof I afiix my signature.

CHARLES E. JACKSON. 

